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Happy Nur Haidar Dwiananda is a professional with experience in the railway and refinery industries. Currently serving as BPA at TPPI (Tuban Refinery) since July 2022, Happy previously worked as a masinis at PT LRT Jakarta from September 2019 to August 2022. Happy holds an Ahli Madya degree in Teknik Mekanika Perkeretaapian from Akademi Perkeretaapian Indonesia Madiun, completed in 2019, and a SMA degree in Physical Sciences from SMA 1 Tuban, obtained in 2016.